MStatus collisionShapeNode::compute( const MPlug& plug, MDataBlock& data )
{
if(plug == oa_collisionShape) {
computeOutputShape(plug, data);
} else if(plug == ca_collisionShape) {
computeCollisionShape(plug, data);
} else if(plug == ca_collisionShapeParam) {
computeCollisionShapeParam(plug, data);
} else {
return MStatus::kUnknownParameter;
}
return MStatus::kSuccess;
}
void BulletCharacterObject::load(Mesh::MeshdataPtr mesh) {
LocationInfo& locinfo = mParent->info(mID);
Vector3f objPosition = mParent->currentPosition(mID);
Quaternion objOrient = mParent->currentOrientation(mID);
btTransform startTransform = btTransform(
btQuaternion(objOrient.x,objOrient.y,objOrient.z,objOrient.w),
btVector3(objPosition.x,objPosition.y,objPosition.z)
);
mGhostObject = new btPairCachingGhostObject();
mGhostObject->setWorldTransform(startTransform);
mParent->broadphase()->getOverlappingPairCache()->setInternalGhostPairCallback(new btGhostPairCallback());
// Currently only support spheres, TODO(ewencp) we might want to support
// capsules instead.
mCollisionShape = computeCollisionShape(mID, mBBox, BULLET_OBJECT_TREATMENT_CHARACTER, Mesh::MeshdataPtr());
mGhostObject->setCollisionShape(mCollisionShape);
mGhostObject->setCollisionFlags(btCollisionObject::CF_CHARACTER_OBJECT);
// TODO(ewencp) make this configurable?
btScalar stepHeight = btScalar(0.5);
// FIXME(ewencp) we know we're only allocating spheres/capsules for this, so
// it's currently safe to do this cast, but technically
// computeCollisionShape can compute concave shapes as well.
mCharacter = new BulletCharacterController (mGhostObject, static_cast<btConvexShape*>(mCollisionShape), stepHeight);
// Get mask information
bulletObjCollisionMaskGroup mygroup, collide_with;
BulletObject::getCollisionMask(BULLET_OBJECT_TREATMENT_CHARACTER, &mygroup, &collide_with);
mParent->dynamicsWorld()->addCollisionObject(mGhostObject, (short)mygroup, (short)collide_with);
mParent->dynamicsWorld()->addAction(mCharacter);
mParent->addTickObject(mID);
mParent->addDeactivateableObject(mID);
}
void BulletRigidBodyObject::load(MeshdataPtr retrievedMesh) {
mObjShape = computeCollisionShape(mID, mBBox, mTreatment, retrievedMesh);
assert(mObjShape != NULL);
addRigidBody();
}
